The purpose of this text is to help elementary school teachers achieve balance in the teaching of mathematics. Children must acquire (1) computational skills, (2) conceptual ideas, and (3) knowledge of applications of mathematics. The text provides reading materials for the teacher as well as problems and exercises to help fix the ideas in mind. Problems in each chapter should be worked as they occur in the chapter. Exercises at the end of the chapters are designed to review and clinch ideas. Answers are found at the end of the book. A glossary of terms is provided for easy reference. Thirty chapters are included that consider various aspects of mathematics related to the K-6 curriculum. Emphasized are four strands: (1) Number Systems; (2) Geometry; (3) Measurement; and (4) Applications and Models. (RH)